CVE-2026-6959 (GCVE-0-2026-6959)

Vulnerability from cvelistv5 – Published: 2026-05-12 18:59 – Updated: 2026-05-12 20:16
VLAI?
Title
Nomad vulnerable to arbitrary file read/write on client host through symlink attack
Summary
HashiCorp Nomad and Nomad Enterprise prior to 2.0.1 are vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-6959) is fixed in Nomad 2.0.1, 1.11.5 and 1.10.11.
Severity ?
6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
CWE
  • CWE-59 - Improper Link Resolution Before File Access (Link Following)
Assigner
References
Impacted products
Vendor Product Version
HashiCorp Nomad Affected: 0.9.0 , < 2.0.1 (semver)
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HashiCorp Nomad Enterprise Affected: 0.9.0 , < 2.0.1 (semver)
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Credits
This issue was identified by Alex Manson (Aiven / NeuroWinter).
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.